Pump.



V. ERVIN'.

-BUMP.' APPLICATION FILED JUL Y I0, I915.

PatentedSepti26,l9l6.

2 SHEETS-SHEET l- V. ERVIN.

PUMP.

APPLICATION man JULY 10. ms.

Patented Sept. 26,1916.

2 SHEE1S-SHEET 2.

'VL7Z/ M New; mm WWW. mmmm. n. c.

A UNITED STATES PATEN OFFICE.

VOLNEY ERVIN, OF SALT LAKE CI'IY, UTAH.

Application filed July 10, 1915.

To all whom it may concern:

Be it known that I, VoLNEY ERVIN, a citizen of the United States,residing at Salt Lake City, in the county of Salt Lake and State ofUtah, have invented certain new and useful Improvements in Pumps, ofwhich the following is a specification.

This invention relates to pumps, and more particularly to that class ofsuch 'devices adapted to be operated by any suitable mo tive power, andhas for its primary object the construction of an improved pump of' theoscillating piston type. v

A further object of this invention is the provision of a device of thecharacter set forth which shall be economical and eflicient ofoperation, producing a maximum amount of work with a minimum outlay ofpower.

A still further object of this invention is to provide a pump of theoscillating piston type, essentially adapted for irrigation purposes,but adaptable to all conditions under which such a device can beeffectually utilized.

Other objects will appear hereinafter in the description of theinvention which consists in the peculiar combination and arrangement ofthe various cooperating elements of a pump as described in the followingspecification, and more particularly set forth in the appended claim.

Referring to the drawings forming a por tion of this specification andillustrating the preferred embodiment of the invention, and in whichsimilar reference characters 1ndicate similar parts wherever used:-Figure 1 is a front elevation showing the operating mechanism. Fig. 2is a vertical longitudinal section taken in a plane parallel to Fig. 1.Fig. 3 is a vertical lateral section on the line 3-8 of Fig 2. Fig. 4 isa detail section illustrating the intake period. Fig. 5 is a detailsection illustrating the exhaust period.

The pump comprises a plurality of suitably formed hollow members 6,connected intermediate their ends at 7, and with the exception of theexhaust member 8, and the intake member 9, are closed at their outerends '10. Adjacent the point of connection of one of the members 6, withthe corresponding member, there is provided a small hanger 11, in whichis pivoted a flap valve 12, the purpose of which will be hereinafterexplained. The series of members 6 are connected adjacent their outerends by Specification of Letters Patent.

members 13, suitably sec'uredthereto.

Patented Sept. 26, 1916.

Serial No. 39,086.

means of vertically extending strengthening The entire device is thenmounted upon the axle 14, carried in suitable bearings 15, supported bytrunnions 16, which are mounted upon the upper edge 17 of a trough orother suitable receptacle 18, adapted to receive water to be raised to ahigher level.

Mounted in any suitable manner upon the side of trough 18, andpreferably by means of an extension 19, is an eccentric 20, carrying apitman 21, which is in turn pivotally connected at 22, to the lower ofsaid memhere 6. The eccentric 20 is driven from any suitable source ofpower and serves by means of the pitman 21, to carry the entire deviceupon the axle 14.

The operation of the device is as follows :The device is placed in sucha position that the lower member 9 of the member 6, extends below thesurface of the water which it is desired to raise to a higher level, andthe device is then rocked to the axle 14, by the means described hereinwith the following result. Upon a movement of the device toward theright, as shown in the drawings, an amount of water is scooped up by thelower member 9, and runs down into the end 23 thereof, causing the flapvalve 12 to assume the position shown in Fig. 4. Upon a furtherrevolution of the eccentric which extends to rock the device toward theleft, the flap valve 12 of the member 9, closes, thus retaining thewater within the member 9. Upon. a second movement toward the right, theoperation described for the initial movement will be repeated with theadditional operation being such that the water contained within theportion 23 of the member 9 will pass by and open the flap valve 12 ofthe member 24 in communication with the member 9. This operation isrepeated, the water flowing in the direction of the arrows, and thevalves 12 opening by means of the pressure of the water on the underside thereof upon the proper stroke, and closing by means of gravityupon a stroke in the reverse direction. This operation is continueduntil the water reaches the member 8, from whence it is dischargedthrough the exhaust 26.

It is obvious that the height of the device may be built to conform tothe height to which it is desired to raise the water, and that thenumber of members may be increased at will, the operation being thesame.

While 1* have ad-m and d'scribii he preferred form of my invention, itwill be obvious that various changes in the'details of construction andin the proportions may be resorted to for successfully carrying myinvention into practice, without sacrificing? any of the novel features,or departing from clined members in communication therewith at a pointintermediate the ends of the first series, a plurality of valves carriedby one oi said series adapted to form continuous "passages through the"communicatlng members of the other of said series, a plurality bothofsaid series of members to cause said i valves to open and close inorder to govern the length of said passages.

In testimony whereof I aflix my signature in presence oi two witnesses.-H I w fl. 'JYQ 'ERVI \Vitnesses: T. L. LorTUs, I HUGHYW, GASAWAY..

Copies of this patent may be obtained for five cents each, by addressingthe Commiss i onerfpfPatents,

- Washington,-D.C. I

